Improvement in steam-heaters



L PEAKE-. G. A. KITCHEN.

Steam-Heaters.

. Patent-ed Sept. 22,1874.

" l VL wwwa@ THE GRAPHIC C0- F'HOYO-LITHBB`4-l PARK PLACEJLY UNITED 'STATES PATENT GFFIGE.

JOHN L. PEAKE AND GEORGE H. KITCHEN, OF NEW YORK, N. Y., ASSIGNORS TO JOHN L. PEAKE, OF SAME PLAGE.

IMPROVEMENT IN STEAM-HEATERS.

Specification forming part of Letters Patent N o. 15 5,203, dated September 22, 1874; application led April 29, 1873.

To all whom it may concern:

Be it known that we, JOHN L. PEAKE and GEORGE H. KITCHEN, both of New York city, in the State of New York, have invented certain Improvements in Steam-Heaters for Buildings and Apartments, of which the following is a specification:

The heater is of that class in which the steam is admitted into tubes and the air to be warmed is allowed to circulate between vthem.A It aids to overcome the serious diiiiculties due to the unequal expansion of the tubes under certain conditions.

The tendency of certain tubes to heat earlier than others, and thereby expand more than the others, has led to many complicated provisions for holding` the tubes separately and connecting them to the steam 'only at the bottom. To insure active circulation of the steam under these conditions various partitions and internal tubes are necessary, all of which are dispensed with by our invention.

We provide an upper chamber or ilat steamchest, and extend each tube quite up through it, making one or more holes in the tube at that point to admit the steam. The upper ends of the tubes being closed, the joints where they pass through the upper steamchest are formed with thick washers of vulcanized india-rubber backed by col-lars or nuts of metal secured in the proper positions on the tube. When a tube is colder or warmer than its neighbors it is free to correspondingly contract or lengthen by the elastic yielding of these washers.

rlhe following is a description of what we consider the best means of carrying out the invention.

The accompanying drawings form a part of this specification.

Figure l is a vertical longitudinal section on the line S S in Fig. 2, and Fig. 2 is a horizontal section through the tubes.

Similar letters of reference indicate like parts in all the figures.

A is a casting which forms the lower steamconnection leading to and supporting the lower ends of the several tubes, and which we will call the lower steam-chest. It is supthe spaces between the tubes.

ported on suitable legs a little above the floor,

and is formed with liberal apertures a through its body between the tubes, which allow currents of cool air to rise up near the iioor into The air from these apertures, as also that circulating laterally between the tubes, becomes warm by contact with the tubes, and is diffused in the apartment, as will be understood. B is the upper steam-chest, which maybe formed with or without such apertures, but both the upper and lower may have studs or braces cast therein to form rigid connections between the upper and lower surfaces. The several tubes D are tapped into the upper surface of the lower steam-chest A, and are long enough to extend loosely through corresponding holes formed in the upper steam-chest and protrude at the upper end. A screw-thread is cut on each tube from its upper end downward to and something below the lower face of the upper steam-chest. A nut, D1, is set on each tube below the upper chest, and a cap, D2, adapted to cover the upper end of the tube, is set on above. The end of each tube D may be Welded up, or it may be left unwelded and closed only by the cap D2, as preferred. Between thenut Dl and the lower face ot' the steam-chest is a thick washer, El, of vulcanized india-rubber. Between the upper nut or cap D2 and the upper face of the steam-chest is a corresponding rubber washer, E2. One or more holes, d, drilled or otherwise produced in each tube D or in the midheight of the upper steam-chest, admit the steam freely.

We prefer to admit the steam to the upper steam-chest B, and to cause the circulation in the apparatus to be mainly or entirely downward; but this is not absolutely essential. The steam, wherever admitted, rises to the upper steam-chest, and, entering the several holes d, circulates downward through the tubes D, being condensed on the passage. rlhe water of condensation may be disposed of in any Ordinary manner.

G1 is the lower connection, and Gr2 the upper connection, as we have here represented it. There may be any ordinary or suitable In testimony whereof We have hereunto set our hands this 21st day of January, 1873, in the presence of two subscribing Witnesses.

JON. L. PEAKE. GEO. H. KITCHEN.

Witnesses:

WM. C. DEY, ALFD. WEs'rBRooK. 

